diff --git a/README.md b/README.md
index 530b6b4..ba2683f 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ TCP File Transfer Server and Client in Rust
 
 ☑ Remove memory limitations. [d42412c](https://github.com/Tahinli/rust-tcp-file-transfer/pull/1/commits/d42412c57d7d95672ba64b3e489b95f1c4b04a08)
 
-☐ Bidirectional transfer.
+☑ Bidirectional transfer. [b0531de] (https://github.com/Tahinli/rust-tcp-file-transfer/commit/b0531deb257332f46fc76de16d3a17fb3b28acee)
 
 ☐ Folder transfer.